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Related Concept Videos

Mechanical Systems01:22

Mechanical Systems

681
Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
681

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4D Printed Actuators with Soft-Robotic Functions.

María López-Valdeolivas1, Danqing Liu2,3, Dick Jan Broer2,3

  • 1Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain.

Macromolecular Rapid Communications
|December 7, 2017
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Summary
This summary is machine-generated.

3D printing creates novel liquid crystalline elastomeric structures with reversible shape-changing capabilities. This advance overcomes limitations of thin-film processing, enabling larger, more complex soft actuators for diverse applications.

Keywords:
3D printingactuatorsadaptive opticsliquid crystalline polymerssoft robotics

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Area of Science:

  • Soft Matter Physics
  • Polymer Science
  • Materials Engineering

Background:

  • Soft matter elements with reversible shape change are crucial for advances in optics, medicine, microfluidics, and robotics.
  • Crosslinked liquid crystalline polymers show promise for soft responsive elements, but current processing methods limit complexity and size.

Purpose of the Study:

  • To develop a new method for creating stimuli-responsive liquid crystalline elastomeric structures using 3D printing.
  • To overcome the limitations of thin-film processing in terms of actuator complexity, size, and actuation energy.

Main Methods:

  • Utilizing 3D printing to fabricate stimuli-responsive liquid crystalline elastomeric structures.
  • Prescribing reversible shape-morphing behavior through the printing process.

Main Results:

  • Successfully created 3D printed liquid crystalline elastomeric structures with programmed, reversible shape-changing properties.
  • Demonstrated unprecedented geometries, complex functions, and sizes exceeding those of traditional thin-film actuators.
  • Overcame limitations in actuation energy compared to thin-film devices.

Conclusions:

  • 3D printing offers a new paradigm for preparing active polymer systems with enhanced shape-morphing capabilities.
  • The developed technology enables the creation of larger, more complex soft actuators, bridging the gap between materials science and practical applications.